Improvement in lamps



UNITED NSTATES PATENT OEEICE.

e MARTIN E. KENYoN, or rnoviDENoE, nHoDE ISLAND..V

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 112,492, dated'April 26, 1864.

To all, whom, it may concern;

` Be it known that I, MARTIN R. KENYON,

of Providence, in the county of Providence and State of Rhode Island, have invented a new and Improved Lamphimney Attachment; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, inl Which- Figure I is a plan of a lamp-top having my improved chimney attachment. Fig. 2 is a perspective view of the same. Fig. 3 is a vertical section.

Like parts in all the figures are marked by similar letters of reference. f

My improvement has particular reference to a certain improved constructionof a lamptop set forth infretters Patent of the United States No. 36,680, granted to Albert Taplin,.

October 14, 1862, the distinctive features of which are, irst, that the cone and chimneyholder are connected to the lamp-cap by a hinge, and, secondly, thatjthe chimney is secured to the said chimney-holder and cone, which are formed in one piece, by means ot' a spring in lieu of a screw, as formerly used. Now, the security ot' the chimney depends wholly on the efficiency-of the saidspriug, and in practice it is found that the spring e'nployed by the said 'Taplin, as described in his specitication, is quite insuticient for the security ofthe glass chimney, owing to the fact that it is made ot' a iiat piece of metal and ot' necessity in a form that deprives it oi agreater portion ot' its elasticity, and to the fact that, besides performing the oiice ot' holding the chimney in its place, it is used as a thumb-piece or lifterinremoving the chimney with its chimney-'holder and cone to trim and light the lamp, in consequence of which the said spring soon becomes permanently bent or broken and entirely useless .for the purpose. My improvement is intended to obviate thisQ diilculty; and to this end it consists inthe formation ot' a thumb'pieceor lifter projecting from the chimneyholder and distinct and separate from the spring, `which it relieves of all strain and injury arising from the' lifting and closing of the hinged cone and chimney.

holder in trimming or lighting the lamp; 'and my improvement further consists in a peculiar construction of the spring and its arrangement with the cone and chimneyholder,

whereby the spring is rendered more elastic.

and secure -t'or the purpose intended.

That others skilled in the art may be en'- abled to make and use my improvement, I will proceed to describe the same.

In the drawings,Ais the cone a n; the chim- Dey-holder, Aand B is the lamp-cap, the two pieces being connected by the hinge G. Upon the opposite side of the chimney-holder from the hinge I form the thumb-.piece or lifter S, which may be of the same piece of'metal with the chimney-holder, which it lifts and closes down when desired independently of theV spring. The spring t, Iform of wire bent into the requsite form, as shown, to confine the chimney to the holder a, in connection with tire projections i zthereon, and formed with a coil'or coils, c e, suitably and compactly ar ranged to give the loose end of the said spring increased4 elasticity, and thereby render it more secure for holding the chimney. This spring is soldered in holes punched in the sides of the cone and chimney-holder in a .firm and substantial manner.

Besides the advantages above mentioned, this spring can be made with a. considerable saving in both material-and labor, and it proves in practice to vbe a. more durable and eitective spring for the purpose than the one heretofore used in this connectionu I am aware thata ilat or sheet-metal spring has heretofore been used for securing the glass lamp-chimney to the lamp-top in a number of ways, as shown and described in Letters Patent to E. F. Jones, and to O. and H. S. Snow, and in the rejected application of J. W. Taber, of March 23, 1861, also, that a helical springacting directly upon a rod has been used to secure the chimney to the lamptop, and I would not'therefore be understood as claiming,l broadly, the use of la .spring arranged in either of the Ways above referred to for the purposespecilied.

I am also aware that the use of a coiled Wire spring, in combination with the upper part cfa lamp-top, when constructed, attached, and ii-tted to produce the ei'ect substantially as therein described, has been secured by Letters Patent to Oliver Snow, dated April 8, 1862, and I therefore wish .it'understood that 4I do not claim, broadly, the use of a coiled spring'for the purpose specified. Neither do I claim -the particular construction ormode of attaching and fitting a coiled spring to a lamptop to produce the effect described and set forth in said Letters Patent, my improvement being conned'to the peculiar construction and arrangement of the two-coil spring @when the same is combined with the thumbpiece or lifter Sin the manner and for theK .purpose herein set forth. Furthermore, I do Ilot claim 4the said lifter S separately, nor except it be combined and arranged with the said two coiled spring t and in such a manner that each, the said spring tand the said lifter S, is auxiliary to the other, and operate and .are used in connection with advantage and .assistance to each, substantially as herein contemplated and therefore shown, a similar lifter being shown wit-hout a spring in Letters Patent ordered to L. J". Atwood on'his'application filed January 6, 1863.

Having thus defined the nature and extent of my improvement, what I claim, and desire to secure by Letters Patent, is-

The combination of the aforesaid hinged cone and chimney-holder, the thumb-piece or lifter S, and the two-coil spring t, when the whole are constructed, arranged, and used for the purpose and effect herein described and set forth.

MARTIN R. KENYON.

Witnesses:

ISAAC A. BROWNELL, WILLIAMfBaoWNELL. 

